Keystones — Cornerstone
Five GCSE retrieval questions · 17 May 2022 · mathsvault.uk/keystones
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1. Number
2000
Answer: 2 × 103 -
2. Algebra
Solve: 9x = 99
Answer: x = 11 -
3. Geometry
Find the area of a right triangle with base 12cm and height 4cm
Answer: 24cm² -
4. Ratio
Simplify the ratio 30:25
Answer: 6:5 -
5. Statistics
Find the range of: 28, 27, 25, 16, 13
Answer: 15